1864950963854 has 64 divisors (see below), whose sum is σ = 3208752230400. Its totient is φ = 805125484800.

The previous prime is 1864950963839. The next prime is 1864950963857. The reversal of 1864950963854 is 4583690594681.

It is a super-2 number, since 2×1864950963854² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1864950963857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13590674 + ... + 13727210.

It is an arithmetic number, because the mean of its divisors is an integer number (50136753600).

Almost surely, 2^{1864950963854} is an apocalyptic number.

1864950963854 is a deficient number, since it is larger than the sum of its proper divisors (1343801266546).

1864950963854 is a wasteful number, since it uses less digits than its factorization.

1864950963854 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136929.

The product of its (nonzero) digits is 223948800, while the sum is 68.

The spelling of 1864950963854 in words is "one trillion, eight hundred sixty-four billion, nine hundred fifty million, nine hundred sixty-three thousand, eight hundred fifty-four".